milkewitz and l



H. MILKEWITZ AND L. AND S. GELARIE.

CEMENTING MACHINE.

APPLICATION FILED FEB. 6. 1919.

Patented Oct. 14,1919.

4 SHEETS-SHEET I.

5. S m g 3 s Q \w 1 a M H M 1 m .1. 1%,, m Q Q Q N x MN Y \N 1 1w Z R1 11 M 3 H. MILKEWITZ AND L. AND S. GELARIE.

CEMENTING MACHINE.

APPLICATION FILED FEB. 6.19l9.

Patented Oct. 14, 1919.

4 SHEETS-SHEET 2 J7 INV Ana/95 ATTORNEYS H. MILKEWITZ AND L. AND S.GELARIE.

CEMENTING MACHINE.

APPLICATION FILED FEB. 6, 1919. 1,318,683. Patented 0013. 14,1919. 4SHEETSSHEET 3- //v VENTOH at M H. MILKEWITZ AND L. AND S. GELARIE.

CEMENTING MACHINE. APPLICATION FILED FEB. 6. 1919.

Patented Oct. 14, 1919.

'4 SHEETS-SHEET 4 INVENTORS 4512 5y ATTORNEYS UNITED STATES PATENTOFFICE.

HIBSH MILKEWITZ, LOUIS GELARIE, AND SAUL GELABIE, OF YORK, N. Y.

CEMENTING-MACHINE.

Specification of Letters ratent.

Patented Oct. 14, 1919.

Application filed February 6, 1919. Serial No. 275,887.

To all whom.- z't may concern Be it known that we, Hrnsn MILKEWITZ, acitizen of Russia, and LOUIS GELARIE and SAUL Gamma, citizens of theUnited States, residing at New York, in the county of New York and Stateof New York, have invented certain new and useful Improvements incementing-Machines, of which the following is a specification;

Our invention relates to a machine for applying cement to rubbergarments, gas masks and other articles made of rubber, for cementingtape or the like to said objects, and for also cementing the seams ofsaid objects together. i

As is well known many classes of rubber garments and other articles madeof rubber have their seams or parts connected by cement. A greatdemandhas therefore sprung up for a machine which would efficiently applcement to such articles and also cement t e parts together, and this isespecially the case with gas masks. Up to the present, however, a simpleand reliable machine has not appeared on the market and this work isdone by hand, which consumes a great deal of time and is very expensive,

' especially in the manufacture of gas masks and like articles whichmust be turned out in enormous quantities.

According to our invention a simple, reliable and compact machine isprovided which enables a single operator to apply cement,etc., either ina semi-automatic or in an absolutely automatic manner. This machine canbe operated with the ordinary small motor used for running sewingmachines or the like and is so compact that it can be mounted upon theframe of an ordinary standard-size sewing machine.

According to our invention the cement can be applied automaticallyto gasmasksand other objects of an irregular outline.

Another object of our invention is to enable the cementing together ofendless articles, such as the cuffs of rubber garments. Another objectof ourinvention is to apply cement to seams or the like where one sideof a garment is higher than the other, in a reliable manner.

Other objects of our invention will be disclosed in the followingdescription and drawings which illustrate a preferred em-, 'bodimentthereof. This embodiment is the same as that shown in our co-pendingapplication Serial No. 275,388.

Figure 1 1s an elevation of our machine taken at right angles to theplane of Fig. 1.

Fig. 5 is a vertical central section through the lower end of thecementchu'te.

Fig. 6 is a plan view of Fig. 5.

Fig. 7, is an elevation of the lower end of the cement chuteillustrating the closing mechanism.

Fig. 8 is an elevation of the roller for applying tape to the garment orother object operated upon.

The entire machine is Preferably mounted upon a frame 72, similar to theframe of a sewing-machine andhaving a table 27. The entire machine isoperated by a pulley 39 which is actuated by a belt 77 that is driven byany suitable source .of power, which is not shown in the drawings asthis in itself is old and well known and as such forms no part of ourinvention.

The belt 77 is preferably driven by an ordinary sewing machine motor ofthe well known light type. The pulley 39 is mounted on a shaft runningin the bearings 47 and carrying the spur gear 46 meshing with'the spurgear 48 which is mounted on the shaft 29 and is supported by thebearings 47 and 53. The shaft 29 also has a wheel 28 by means of whichthe operator can quickly stop the operation of the machine. Any familiarbrake of any well known type. may also be applied to the wheel 28. Theshaft 29 terminates in the enlarged head 36 having a square socket intowhich the shaft 37, which, has a correspondingly shaped head, can fit. Apulley 75 is mounted on the shaft 29 and is connected by means of anendless belt 41 with another pulley 75 which is mounted on the shaft 29that is suitably of Fig. 4. When the angular pieces 74 are in positionthey extend between the hnes 130and 131 shown in Fi 1, and have the samelevel as the work ta le 27.

At the base of the machine an arm having a footrest 73 is pivoted at 71.This arm is connected to a chain 2 that passes through the angular arm 1and is connected to the eye 3 of the lever 50 which is pivoted at 4. Thelever 50 bears against the lower end of a cement receptacle 14, which isconnected to the cement chute 24 by means of a set screw 15, or someother convenient and detachable fastening means. I

When the foot-rest 73 is forced down, the cement receptacle 14 and thecement chute 24 are moved upwardly as clearly appears in Fig. l. Thecement chute 24 slides up and down in an outer tube 22, which isconnected to the horizontal rods 9 and 10 that slide in ways 7 and 8 ofthe angular arm 1. The tube 22 is urged away from the angular arm 1 bythe powerful spiral spring 6. Hence, as shown in Fig. 1, the cementchute 24 can be forced away from the belt 31 to a position over thelower pattern 121, or as shown in Fig. 3, it can be maintained in aposition directly over the belt 41 which passes over the pulley 75 beingkept 1n that position by keys or wedges 51, which pass through theapertures 11 and 12 of the horizontal guide pins 9 and 10.

When it is desired to merely apply cement to straight seams, the cementchute 24 is used in combination with the endless belt 41 and in theposition shown in Fig. 3. On the other hand when it is desired to applycement to objects of irregular outlines, such as gas masks or the like,the cement chute 24 is allowed to assume the position shown in Fig. 1.The cement chute 24 is normally kept in its lower position, by thespring 21 which is connected to the tube 22, and detachably secured tothe pin 23 which is fastened to the cement chute 24. This spring 21always tends to urge the chute 24 downwardly, and is overcome by thefoot of the operator working through the connections lbefore mentioned.

At its lower end the cement chute 24 is provided with a butterfly valve25, operated by means of a handle 160.

s shown particularly in Figs. 5, 6, and 7, the lower part of the cementchute 24 is providedcwith a bottom having a toe 59, which is secured bymeans of a spring 62 having a bent projection fitting into a notch inthe side of the cement chute 24. This detachable bottom of the cementchute 24 is provided with a mutilated shaft 58 operated by means of atoothed segment 57 and the lever 156 pivoted at 56 and also having atoothed segment. When its shaft 58 is turned so that the arcuate portionis over the orifice or slit 61, then the bottom of the cement chute 24is closed. But when the arcuate portion of the shaft 58 is turned awayfrom the slit 61, this is open and permits cement to pass on. A seriesof these detachable bottoms with slits or orifices 61 of varying sizesmay be provided for each cement chute 24.

When the cement chute 24 is in its operative or lower position, theorifice 61 is open, but when the chain 2 is pulled down by the foot ofthe operator and the chute 24 is lifted with respect to the outer tube22 then, as is shown'in Fig. 7, the lever 156 impinges on the tube 22and is rotated, whereby the shaft 58 is simultaneously rotated toprevent any more cement from escaping from the chute, and dripping overthe fabric.

To operate with straight seams, our machine is used as follows: Thecement chute '24 is locked in its righthand position, as shown in Fig.3. The cement receptacle 14 is filled with cement, and the cover bearingthe stem 32 and the plunger or piston 34 is then applied, as shown inFig. 3. The stem 32 has an enlargement 33 into which a series of smallweightscan be placed, depending upon the speed of operation desired, andthe cement is. slowly forced out of the receptacle 14 into the cementchute 24.

As long as the operator forces down the footrest 73 and hence pulls downthe chain 2, the cement chute 24 is maintained in its upper andinoperative position, no cement being allowed to escape. The article onwhich cement is to be applied in a straight line is laid over the belt41, which is actuated by means of that pulley 75, which is mounted onthe shaft 29. As a result the article is moved forward by the belt 31,passes under the .toe 59 and a line of cement of uniform width isapplied thereto in a reliable manner by means of the cement chute 24. Ifat any time it is desired to interrupt the operation of the device, theoperator merely presses down the foot-rest 73 and instantly stops theapplication of the cement. If it is desired to stop the mov ment of theendless belt 41, the machine is disconnected from the source of powerwhich moves the belt 77. In this manner a series of articles can havecement applied thereto by simply pushing down the footrest 73 whenenough cement has been applied to one article.

If it is desired to apply cement to endless objects, such as the cuffsof raincoats, or the like, then the parts 74 are swung around the rod 60and the object is laterally slipped over the endless belt 41.

If it is desired to apply cement to the adjacent overlapping edges oftwo objects, then experience has shown that there is danger that thecement will only be applied to the upper of these edges. The endlessbelt 41,

-' meshes with the bevel gear 30. This bevel therefore, runs over thedetachable bridge 76, which is provided with a groove or depression 124.The fabric 150 to which the cement is to be applied is forced into'thisgroove or depression, but is not run under the cement chute 24 in aperfectly fiat condition but tends to assume an angular config urationso that both of the overlapping edges catch the cement in an equal andreliable manner. Experience has shown that a sort of trough or hollow isformed in the fabric directly underneath the cemient' chute so that thecement is properly applied upon th lower piece of fabric. This isbecause the two overlapped edges tend to remain above the level of thebridge 76, and they are therefore forced downwardly by the cement chuteinto the depression. The tension of the belt is preferably made so greatthat the weight of the cement chute cannot force 1t against the bottomof the depression 124.

A [series of bridges 76 having grooves or depressions 124 of diflerentwidths can be supplied with each machine.

In order to cement pieces of fabric to gether, tape 80 is led from areel placed in any convenient location and not shown in the drawings,over a roller 81. This roller 81 has yoke 83 pivoted at 85 and ispreferably made of soft rubber or faced with that material. It slides onthe yoke 83 and is always downwardly forced by means of the springs 87.It is guided up and down by I means of the pins 86 having the--heads 88which prevent the roller from being forced too far down.

The yoke 81 is preferably connected to a detachably secured spring 82,which forces it downwardly against the fabric 150. If, however, it isdesired to merely apply cement, then the roller 81 is swung tomoperative position and is kept there by means of the spring 170 shownin Fig. 4.-

By means of the parts already described, cement can be applied to allkinds of straight seams; it can also be uniformly and properly appliedto the overlapping edges of two pieces of fabric; these overlappingedges can be permanently secured by means of suitable tape. A veryimportant object'of my invention, however, is to apply cement in anautomatic manner to objects having an irregular outline, such as theparts of gas masks.

For this purpose the counter-shaft 31 is provided at the. left of theline 131, shown in Fig. 1, and this counter-shaft 37 may be drawn intoand out of mesh with the shaft 29. The shaft 37 is mounted inthe'bearing 36 and as shown in Fig. 2 has a spur gear .44 which mesheswith a gear 45 mounted on a shaft carrying the bevel gear 31, which gear30 actuates a short vertical shaft 49 upon which a pattern 121 ismounted. The

lever 50 is provided with an extension 116 into which a short link isadjustably' secured by a set screw 172. This link is connected by meansof the eye 17 to a vertical rod 18 having a head 19whereby the upperpattern 20, which is quite heavy, can be ralsed or allowed to rest onthe lower pattern 121. The upper pattern 20 is shaped like a cam and hasany desired contour, dependent upon the shape of the object to which thecement has been applied. The spring 6 forces the outer tube 22 to theleft, until the'wheel 26 contacts with the cam surface of thepattern'20. When this is done the orifice through which the cementissues is exactly over the edge of the lower pattern 121, so that theline of cement 122 is applied to any object which is held clamped Vbetween the two patterns 20 and 121.

The operation of this part of my machine is as follows: The upperpattern 20 is lifted and the object to which the cement is to be appliedis placed upon the lower pattern-121. Then the upper pattern 20 islowered until it rests upon the lower pattern 121 and clamps the objectto be cemented by reason of its weight. The keys 51 are then. removed,,and the spring6 urges the cement chute 24 to the left, until the wheel26 contacts with the cam surface of the upper pattern 20. As the machinenow rotates, cement is uniformlyand reliably applied to the entireperiphery of the irregular object. When this has been done, the cementchute 24 is raised thereby cutting oif the supply of cement. A newobject is put on the pattern 121 and the machine is again operated asbefore.

By means of this machine, cement can be applied to any sort of seam,either straight or of any irregular contour, pieces of fabric can befastened together, and generally speaking anything can be done either ina semi-automatic or an entirely automatic manner that is now done byhand. The frictional hold of upper pattern 20 on the fabric and thelower pattern is sufficient to keep it in place during the cementingoperation. We have shown a preferred embodiment of our invention with alarge number of details, but it is obvious thatthese can be changed andomitted and numerous alterations made without departing from the spiritof our invention. 1 i 1;.

The belt 41 is maintained taut by the roller 40 guided in its up anddown move- .ment by the pin 64 sliding in the guides of the line'13'1,together with all the parts connected thereto, can be slid to the lefton the rods 60, whenever desired, especially when the machine is beingused'on straight seams.

We claim 1. In a machine for applying cement to (garments, a cementchute, a valve for controlling the flow of cement from said cementchute, the mouth of said chute being substantially unobstructed whensaid valve is :in the (open position and means for moving said cementchute to an operative posiitlOIl to deliver cement and for moving itlivered under the said chute, valve means for controlling the flow ofcement from the bottom of said chute, and automatic means for closingsaid valve means when the said chute is raised to a definite position,said valve means being opened when the chute is in its lower andoperative position.

3. In a machine for applying cement to garments, a cement chute beingconstantly urged to a lower and operative position by gravity, means forraising the sald chute to an inoperative position, means for forcingcement out of said chute, valve means for controlling the flow of cementfrom the bottom of the said chute, and automatic means for closing thesaid valve means when the said chute is raised and for permitting theopening of the said valve means when the said chute is lowered to itsoperative position.

L. In combination, a cement chute, means for moving it up and down, anouter tube surrounding the said cement chute, means for preventing anyrelative vertical move-- ment of said outer tube with respect to thesaid cement chute, valve means located at the bottom of the said cementchute for con trolling the flow of cement therefrom, a lever pivoted tothe said cement chute and adapted to strike against the said outertubewhen the said cement chute is raised, so that a rotary movement isimparted thereto, and connecting means intermediate said valve means onthe said lever whereby the said rotary movement causes the closing ofthe said valve means when the said chute is raised.

5. In combination, a cement chute, means for forcing said cement chutedownwardly, pulleys located underneath the said cement chute, an endlessbelt passing around the said pulleys, means for rotating the saidpulleys so that the said endless belt moves directly underneath the saidcement chute, abutments located at the sides of the said cement chuteand over which the said endless belt passes, and a bridge piece intermediate said abutments and directly underneath the said cement chute, thesurface of the said bridge piece underneath the said cement chute beingbelow said abutments.

6. In combination, a cement chute, means for forcing said cement chutedownwardly, pulleys located underneath the said cement chute, an endlessbelt passing around the said pulleys, means for rotating the saidpulleys so that the said endless belt moves directly underneath the saidcement chute, abutments located at the sides of the said cement chuteand over which the said endless belt passes, and a bridge pieceintermediate said abutments and directly underneath the said cementchute, the surface of the said bridge piece underneath the said cementchute being below said abutments, the said surface being so depressedand the tension of the belt being so reat that the pressure of the saidcement c ute is insuflicient to force the said belt against the saidsurface.

7. In combination, a cement chute located :above a table, means formoving the said cement chute up and down, pulleys located underneath thesaid table, an endless belt passing over the said pulleys and directlyunderneath the said chute, means for driving the said pulleys, and meansfor removing that portion of the said table directly above the saidendless belt whereby endless objects can be slipped over the said beltto be moved thereby under the said cement chute.

In testimony whereof we hereunto aflix our signatures.

HIRSH MILKEWITZ. LOUIS GELARIE. SAUL GELARIE.

